2256849 has 16 divisors (see below), whose sum is σ = 3821440. Its totient is φ = 1289520.

The previous prime is 2256847. The next prime is 2256851. The reversal of 2256849 is 9486522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2256847) and next prime (2256851).

It is not a de Polignac number, because 2256849 - 2¹ = 2256847 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2256841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5782 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (238840).

2^2256849 is an apocalyptic number.

It is an amenable number.

2256849 is a deficient number, since it is larger than the sum of its proper divisors (1564591).

2256849 is a wasteful number, since it uses less digits than its factorization.

2256849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11957 (or 11951 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2256849 is about 1502.2812652762. The cubic root of 2256849 is about 131.1698939759.

The spelling of 2256849 in words is "two million, two hundred fifty-six thousand, eight hundred forty-nine".